Printing-telegraph apparatus.



L. V. LEWIS.

PRINTING TELEGRAPH APPARATUS,

APPLICATION FILED APR. 16. IBM.

Patented Apr. 4, 1916.

5 SHEETS-SHEET 1.

INVENTOR L. V. LEWIS.

PRINTING TFLEGRAPH APPARATUS.

)APPLICATION FILED APR. 16. 1914. 1,177,782. Patent-ed Apr. 4, 1916.

5 SHEETS-SHEET'Z- L. V. LEWIS.

PRINTING TELEGRAPH APPARATUS.

n0 1 9 1 4* n p A d nu t H n? t a P A" M Rw R P A D E L H N 0 .H A c U PP A 2 8 7 9 7 7 1 Q 1 5 SHEETS-SHEET 3.

FIG.4

V I TNESSES W M aim L. V. LEWIS.

PRINTING TELEGRAPH APPARATUS.

APPLICATION FILED APR. 16, 1914.

Patented Apr. 4, 1916.

A 5 SHEETS-SHEET 4.

fad;

INVENTOR J4 azz aw Q L. V. LEWIS.

PRINTING TELEGRAPH APPARATUS.

APPLICATION FILED APR. 1-6. m4.

1,177,782. Patented Apr. 4,1916.

5 SHEETS-SHEETS- UNITED s'rarns OFFICE.

LLOYD v. LEWI-S, or nnenwoon sanction, PENNSYLVANIA, AssieNon. 'ro- THEUNION swrrcn & SIGNAL oomranr, or swIssvALn'rnimsYLvAnm, a'coaroaaraonor PENNSYLVAN PRINTING-TELEGRAPH APPARATUS.

Specification of Letters Patent.

I Patented A r. 4, 1916.

Application filed April 16,1914. Serial No. 832,252.

To all whom it may concern: 7

Be it known that I, LLOYD V. LEWIS, a citizen of the United States,residing at Edgewood borough, in the county of Allegheny and State ofPennsylvania, haveinvented certain new and useful Improve- I ments inPrinting-Telegraph Apparatus, of

which the following is a specification.

My invention relates to printing telegraph apparatus, and particularlyto the translator comprised in such apparatus.

I will describe one form of translator embOdyingmy invention; and. willthen point Fig. 3 is a viewlooking at the left-hand end of Fig. 1, andshowing a selecting device for the control of the translator. Fig. 4 isa sectional view on the plane indicated ---by- -'the*.-line.-IVIV inFig. 3, looking in the direction of the arrows.

Fig. 5 is a view on the line V-V of Fig. 4, certain parts being omittedin order to show-clearly the relative locations of cams 14-and15- andeccentric 70. Fig. 6 is a sectional view on the plane indicated by lineVI VI in Fig. 1. looking in thedirection'of the arrows.

Fig. 7 is a sectional view on the planes in-fff dicated by line -VII-VII in Fig. 1, looking inithedirection of thearrows. Fig. 81

is afragmental view showing in front ele vation a portion, of theapparatus which is omitted from Fig.1 because of being,lo" cated'infront of-fthe plane onwhich part of the latter view is sectioned." Fig.9 is af vi'ewshowing a portion-of one of the per Similar'freferencecharacters refer to Referringfirstto Figs. ,1; and'2,

mutation'b'ars B on an enlarged scale.

simila'rkpa'rts in each'of the views.

the reference character F designates a frame comprisinga bottom plate 1,a platform 2, and othen's'uitablestructural parts. Mounted ontheijbottom plate 1 is an electric motor M whose rotatable member isconnected with aspindlea on which is fixed a spiral gear drives a spiralgear wheel 5 which is fixed.

wheel 4., This gear Wheel meshes with and on a shaft 6 journaled in aside plate 8 and a bearing 7 both mounted on the platform 2. "The shaft6 operates certain apparatushereinafter explained. Gear wheel 5 rotatesin the direction indicated by the arrow in Fig. 2. 10 is another shaftwhich is jour-, naled in bearings 11 and 13. (see Figs. 4 and 6) both ofwhich are mounted on the platform 2; this shaft also rotates in aballbearing 12 located in the hub of gear wheel 5. Fixed on this shaft10 are two cams 14 and 15 (see Fig. 4) which coact with rollers 16 and17 respectively for purposes which will hereinafter appear. Alsoeccentri'cally connected With the shaft is a bar 70 (see Figs. 5'and 6)which actuates the printing mechanism as hereinafter explained. Q I

Shaft 10 is at times connected with gear wheel 5 by means of a ballclutch C'which I will now explain, referring 'to Figs. 1 and 2. Thisclutch comprises ashell 45 formed", 7'

as an extension of the hubof gear wheeljfi, and a'clutch plate 46secured to the shaft 10' and located within the shell 45. Thepe-friphery of clutch plate 46 is provided with a plurality of triangularnotches 49 in each of which is located a ball 48. Each ball is actedupon by a spring 50 which is seated in a hole. in the clutch plate andwhich tends to force theball outwardlV so that it will wedgebetweentheclutch pl'ate and-the shell and so clutch "the two together. Todisengage the clutchthere is provided 'a disk 51,. loosely mounted onclutch plate 46, carryinga number of projecting studs 47,

which,{:whenthe disk 51 is held against rotatiompress against"andstopthe balls, the continued movement ofclutchplate 46 due to itsmomentum serving-,tofree the balls from the shell 45 and to compress.,the

springs '50. 'Disk'51- is controlled 'bvan electromagnet 38 mounted onthe platform '2. for whichpurpose the'disk is provided with a lip 91which is engaged by a hook on the vertical arm of a pawl 54 pivotally'mounted in a lug 55 on hearing 11. Resting on the horizontal arm of thispawl is a stem 53 which carries a clamp 53 by means of which the stemmay be pressed downwardly by armature 52 of magnet38 when the magnet isenergized. Pawl 54 is acted upon bya spring 56 attached to hearing 11,which tends to holdit in position to en age the lip 91, but when magnet38 is energized, arma-' ture 52 swings the pawl outwardlv against theaction of the spring so that disk 51 is released- Armature 52 is pivotedin a magnet bracket 38*, and its upward movement is limited by a stud 57which is screwedinto the bracket 38 and passes through a hole in thearmature and carries nuts 57 by which the armature is stopped. ,It' willbe seen that the clutch is engaged or not, ac-.- cording as the disk 51is free to rotate or is held by pawl 54.

In the operation of the apparatus it is desirable that shaft 10 .shouldmake only one revolution at a time, magnet 38 is, 3 therefore,magnetized only momentarily, so 5* and since these springs are mountedin clutch plate 46 the reaction against balls 48 and studs 47' wouldcause the clutch plate to rotate in the reverse direction and reengage,were no means provided to check this-reverse rotation. I thereforeprovide a single .tooth ratchet 58 fixed to the shaft and adapted to beengaged by pawl 59 due to the tension of spring 60. Pawl 59 is adjustedso as to engage the tooth of ratchet 58 at the point at which the energyof the rotating parts has been absorbed by the springs 50. The shaft 10,therefore, when at'rest, is held in a definite position between pawls 54and 59, and when disk 51 is rapid and released, the engagement of theclutch is positive due to the tension of springs 50.

B, B, etc., are six permutation bars, one of which is shown in detail inFig. 9, which bars are mounted in the following manner toreciprocatelongitudinally. Fixed on the platform 2 is a post 18 (seeFigs. 1, 4 and 6) to one side of which a guide plate 19 is secured bybolts 20. .This guide plate projects from the post 18 and is providedwith a rectangular hole'through which the permutation bars B slide. Thebars are sepat d by a comb 21 having a slot for each which comb isattachedto the other isidel'of the post 18 by the bolts 20. Each barrolls on a ball 24'which is located be- .tween the bar and the post 18and is kept in place by the plate 19 and the comb 21 as shown in F ig.4.. The longitudinal movement of each bar. is limited by a plate 22which is clamped to the post 18 bv the bolts 20 and which projects intoa slot 23 cut in each bar. The bars B are further supported and guidedby another post 18 (see Figs. 7 and 8) mounted on platform 2 near the c(ther' end, and also by a middle post 18 with parts similar to thoseshown on post see Figs. 2 andS). Post 18- is provided 18 except that theplate 22 for limiting the reciprocation of the bars is not duplicated.The bars B are controlled by selecting apparatus which I will nowdescribe.

Mounted on the platform 2 is an end plate 9 to whichare attached sixselector magnets ,8, one for each permutation bar, each of which isadapted to press upon one end of a-stem 27 .mounted to reciprocate inguides '31 and 31 mounted on end plate 9. Each stem is acted upon by aspring 27 which tends to cause the stem to rest against itscorresponding finger 26. The other end of each stem 27 is adapted topress upon one arm 29 of a three-armed driving pawl 29, which'pawls (sixin number, one for each permutation bar) are pivotally mounted on a rod30 mounted in a yoke 32 which yoke is mounted to swing on trunnions 33supported in two arms 35 projecting from the end plate 9. Integral withyoke 32 is a rocker arm 32 in the end of which is journaled the roller17 which coacts with cam 15. Another arm 29 of each pawl 29 is adaptedto swing into and out of a notch 37 in the end of the correspondingpermutation bar B, but the pawl is biased by a spring 29 to suchposition that its arm 29 is not in the notch 37. It will be seen thatwhen a magnet S is energized, its finger 26 presses the correspondingstem 27 inwardly, thereby swinging the corresponding pawl 29 into thenotch 37 of a permutation bar. The pawls are locked in this operatedposition by latches 36, one for each pawl, each of which latches isprovided with a shoulder adapted to hook the end of the third arm 29 ofthe corresponding pawl when the latter has been swung to the operatedposition. The latches are pivotally mounted on a shaft 28 which iscarried by lugs on guide 31. Each latch is actuated by a spring 36.

It will be seen. that if one or more of the pawls 29 are operated by thecorresponding magnet or magnets S, and the yoke 32 is then swung by cam15, thecorresponding bar or bars B will be moved to the right as viewedin Fig. 4. During this movement the pawl or pawls 29 are inoved awayfrom the corresponding latch or latches 36, whose motion is limited bystops...36.... -The pawl or pawls, however, remain in engagement withtheir corresponding permutation bars on their forward stroke because ofa slight undercut in notch 37 on the permutation bar B. At the beginningof the return stroke of the pawl 29, the pawl is freed from thepermutation bar B, the latter being' held in its displaced position byfricto the positions in which they are shown in the drawing, I provide ayoke 39 which is connected by a spring 44 which is constantly undertension.

The operation of the parts thus far described is as follows: As shown inthe drawings the parts are in what may be termed their ndrmal positions.It is understood that the motor M is constantly operating,

but that due to the clutch C it is normally disconnected from shaft 10.When a signal is to be received, one or more of the magnets S are firstenergized, thereby swinging the corresponding pawl or pawls 29 into thenotches, 37 in the corresponding bar or bars B. The magnet 38 ismomentarily energized, thereby releasing clutch C so that shaft 10 isrotated through one revolution. During the first part of thisrevolution, cam 15 (see Fig. 5) swings the yoke'32 inwardly toward theend plate so that those pawls 29 which have been 0perated move thecorresponding bar or bars -B to the right as viewed in Fig. 41 Rod 40 inyoke 39 does not interfere with this move ment of the permutation barsbecause roller 16 rides off from the swell of its cam 14 at the sametime and rate as roller 17 is raised by the swell of its cam 15. As therotation of shaft 10 continues, roller 17 rides down from the swell ofits cam and the pawls which have been operated are restored ashereinbefore explained, and yoke 32 is returned to its normal positionby the spring 44 so that another combination may be set up byenergizingone or more of the magnets S. During the return of yoke 32 and the nextsucceeding portion of the revolution of shaft 10, the printing apparatuscontrolled by bars B is operated by eccentric rod as hereinafterexplained, and just at the end of the revolution of shaft 10 cam 14raises roller '16, thereby restoring the bar or bars B to theirnormal'positions.

The permutation bars B are provided with slots 61 which coact with aplurality of printer-controlling selector fingers 62 pivotally mountedon a rod 63 Which is 1n turn mounted in a comb 64 secured to theplatform 2, This comb is provided with a pluralityof vertical slots 64(see Flg. 2) one for each finger, and the tongues between these slotsare each provided witha horizontal slot64 adapted to receive the rod 63.The rod 63 is fixed to the comb at each end by a pin.65 passing throughthe shaft and the comb, as shown in Fig. l. The fingers are guided neartheir upper ends by another comb 66 which is attached to a lug 66 oneach end plate 9and 8 (see Fig. 1),

and which is provided with a plurality of vertical slots one for eachfinger Each finger 62 is acted upon by a spring 67 attached' to an anglebar 68 which is secured to the upper surface of comb 66, the tendency ofwhich springs is to hold the finger in contact with'the permutation barsB.

The slots 61 in the bars B are so arranged that when all the bars are inthe normal position there is but one finger, the one opposite slots 61*,for which the slots in each bar register, hence all of the other fingersare then held out of the slots; but that when one or more bars have beenmoved by cam 15, the slots in all of the bars will register for someother finger and that finger will be drawn into the slots by its spring67, and the finger in slot 61 will be pushed out by the beveled surfaceof slot 61*. In order to restore to its normal position the finger whichhas thus been drawn into the slots 61, one side of certain of the slots61 in each bar B. is sloped as shown in Fig. 9, so that as the bar orbars are driven back to normal position they drive the finger 62 out ofthe slots. It is not necessary that all of the slots should be thussloped, but only those of each bar into which a finger falls when thebar has been moved by cam 15.

The fingers 62 may be employed to con-.

trol printing apparatus of any suitable kind; as here shown, theycontrol the key levers 71 of an ordinary typewriter T, a portion of theframework of which is shown in Fig. 2, this typewriter being mounted onthe frame Pivoted in trunnion screws 74 in end plates 8 and 9 is a rod74 on which are fixed two arms 75 and 75, one adjacent each end plate.These arms are also connected by a rod 76, and these arms and rodstogether constitute what I shall term a rocker frame. This frame isrocked by the eccentric rod 70, the upper end of which is pivotallyconnected with arm 75, as shown in Figs. .5 and 6. For '5 and thebearing 77, and the other end of which rests on the top of rod 74. Theforward end of each lever 81 lies over the space occupied by the upperend of the corresponding finger 62 when the' latter has been drawn intothe slots in the permutation bars B. It will be seen, therefore,thatwhen the v end 7 8 of a pawl 78 pivoted at 7 8 on end plate 9. Pawl 78is biased by a spring 79 to the -rocker frame is drawn down by eccentricrod 70, all of the levers 81 will, if all fingers 62 are in normalposition, rotate around the rod 74 and will cause no operation of thekey levers 71, but that if a finger 62 has been drawn into the slots 61in the permutation bars it will form a stop for the free end of thecorresponding lever 81 and the latter will then swing around the top offinger 62 as a center and will depress the corresponding key leven'71,thereby causing a character to be printed by the typewriter or causingsome other func ion to be performed in the typewriter.'-- The levers 81are made of spring material, thereby securing elasticity of touch whicheliminates the shock to the typewriter key action ordinarily associatedwith mechanical operation and hence permitsof high speed operation.Furthermore, the elasticity .of the levers 81 which operate ordinary keylevers is preferably greater than that of the springs which perform theheavier functions hereinafter explained; that is, I vary the elasticityof the levers in accordance with the work to be performed thereby. Mostof the fingers 62 and corresponding bars 71 are for the printingofcharacters, but finger 62 at one end of the machine, and fingers 62",62, 62 and 62 at the other end are employed for special purposes as Iwill now explain.

Finger 62 controls the shift key '71 of the typewriter, that is, the keywhich shifts the paper carriage to print characters which are in theupper case. Referring particularly to Fig. 6., the shift key 71* of thetypewriter has a downwardly extending tongue 83 provided with a shoulder83 adapted, when the key is depressed, to catch under the dash lineposition, that is, to such position that it will catch shoulder 83*whenkey 71 is depressed. Finger 81 for actuating the shift key isprovided with a downwardly extending hook pawl 82 adapted to engage withtongue 80. projecting from pawl 78.

The operation of theshifting apparatus is as follows: When'the rockingframe rod 76 is drawn downwardly without finger 62" having been swunginto operative position, hook 82 swings into the right hand dash lineposition in Fig. 6,. thereby allowing pawl 78 to swing into the dashlineposition,

but key 71' is not depressed, so when the rod 76 returns the hook 82draws pawl'7 8 back to the normal or full line position. If, however,finger 62 is moved "into the operative position, then when rod 76isdrawn down, key 71 is depressed and hook 82 swings into the left-handdash line position, therebyallowing pawl 78 to swing downwardly to catchshoulder 83 so that key 71 is held down after finger 81 returns. Thenwhenshoulder 83, thereby releasing key 71. It

will be seen, therefore, that when the shift key is depressed it remainsdown and is released when the rod 76 returns after print-. ing the nextcharacter.

Finger 62 accomplishes the line spacing; that is, it operates typewriterkey 71 (see Fig. 7) which moves the message paper the space of one line.In order to accomplish another function hereinafter explained, lever 81is caused to operate a ratchet wheel 91 in the following manner: Eachtime lever 81 is operated to depress its typewriter key 71 it alsodepresses one end of a crank 87 which is fixed on a shaft 84: journaledin end plate 8 and in bearing 7. Also fixed on this shaft near end plate8 is a pawl 90 which coacts with the ratchet wheel 91 which is mountedin a suitable bearing on end plate 8, so that each time lever 81 isoperated, ratchet wheel 91 is moved one tooth. The ratchet wheel is heldfrom accidental rotation by a roller 100 carried on a pawl 100, whichroller is pressed against the ratchet wheel by a spring 100 acting on'the pawl. The function of the ratchet wheel 91 will appear hereinafter.

In order that the messages may be printed. on sheets of paper of uniformsize, it is de- 100 sirable that the first line of each message bestarted a given number of line spaces from the first line of thepreceding message, which function 'is usuallv known as blanking. Forthis purpose, finger 62 operates special 105 apparatus which I will nowdescribe, referring to Figs. 7 and 8.

The line spacing finger 62 is not formed of a single piece like theother fingers, but comprises a link 85 which is pivotally 110 mounted onthe rod 63 and to which the finger portion 62 is pivotally attached bymeansof a screw 85. Also pivotally connected to the link 85 is a link 92the other end of which is pivoted to one arm of a bell- 11a.

behind finger 62" thisfinger swings around pivotal point 85 and thuscauses operation of lever 81"; and when lever 81 is operated. the finger62 is buckled outwardly at pivot 85 by crank 93 and link' 92 so that itsupper end then also moves into the path of lever 81". Finger 62 isretained in this buckled I disconnecting it from said motor, a pluralityof permutation bars, a cam on said shaft, line controlled means operatedby said cam for selectively moving one or more of said bars, and meansfor restoring said bar .or bars.

s lever t as a center and the key lever is not operated;

3. Printing telegraph apparatus comprising a continuously operatingmotor, a

shaft, a clutch for connecting said shaft with and disconnecting it fromsaid motor, a plurality of permutation bars, cams on said shaft, linecontrolled means operated by one of said cams for selectively moving oneor more of said bars, printing means controlled by said bars, aneccentric operated by said shaft for actuatin said printing means, andmeans operate by another of said cams for'restoring said bar orbars.

4. Printing telegraph apparatuscor'nprising a typewriter having keylevers, a rocker frame, means for rocking said frame,.a plurality ofoperating levers one for each key lever and each pivotally mountedintermediate its ends in said frame, one end of each operating leverbeing in o erative relation to its key lever, and a plurality of fingersonefor each operating lever movable into and out of the path of theother end of the operating lever, whereby when the rocker frame is swungand a finger is in the path of its operating lever, the operating leveroscillates around the-finger as a center and operates the correspondlngkey lever, but when the fin er is out of the path of the operating helatter swings around the key lever 5. Printing telegraph apparatuscomprising a typewriter havm ey levers and levers for performing 0t erfunctions in the operation of the typewriter, a rocker frame,

means for rocking said frame, a plurality of elastic operating leversone for each key lever and for each of the other functioning leverscomprised in the typewriter, the elasticity of each of said operatinglevers varying in accordance with the work to be performed in operatingits typewriter lever,

each operating leverbeing pivotally mounted intermediate its ends insaidframe, and having one end in operative relation to the correspondingtypewriter lever, and'a plurality of fingers one for each 0 cratinglever andmovable into and out of t e path of the other end of thelatter, whereby when a finger is in the path. ofits operating lever anthe rocker fram'e'is operated the operatingjlever swings around thefinger as a center and operates the corresponding typewriter lever, butwhen the fingeris out of the path of the operating. lever the latterswings aroundthe typewriter lever as a' centel" and the latter is notoperated.

6. Printing telegraph apparatus comprising a typewriter having characterkey levers not according as the corresponding finger is.

in or out of operative position, a pawl for locking the shift key leverin operated position, and a hook operated by the corresponding operatinglever for releasing said pawl on the return movement of said operatinglever while the latter is swinging around its first-mentioned end, saidhook being inoperative to release the pawl when the operating leverswings around its second-mew tioned end.

7. Printing telegraph apparatus comprising line spacing mechanism, anoperating lever for said mechanism, a finger. for controlling s'aidoperating lever and movable into and out of controlling position, a continuously operating motor, a shaft,-a clutch interposed between saidshaft and said motor, means for causing engagement of said clutch, meansoperated by said shaft for causing movement of said operating-lever tooperate the mechanism when the finger is in controlling position, acounting wheel, a pawl controlled by the key lever for advancing thecounting wheel at each operation of said mechanism, a blanking finger, amember controlled thereby for moving said mecha nism controlling fingerinto controlling position, a pawl for locking said member in thelast-mentioned position, means controlled by said member when in saidposition for operatin the means which causes and a shift key lever, arocker frame, a pluralengagement of said clutch whereby to cause A ityof permutation bars, a cam on sai shaft,

and line controlled means operated by said cam for selectively shiftingone or more of sald bars.

9. Printing telegraph apparatus comprising a rotatable shaft capable ofintermittent operation, a plurality of permutation 'bars,

printing means controlled by said bars, line position-by an arm 93*integral with crank 93, whicharm is locked by a pawl 96 pivotallymounted at 96 on end plate 8.- The depression of crank 93 also swingsrod 95 which, by a projecting arm95'. fixed thereto, raises one end of alever 97 pivotally mounted on middle post 18". The other end of thislever is thus depressed, thereby pressing downwardly on pawl 54 andreleasing'clutch' This operation continues until a sthd 98 on theratchetwheelengages pawl 96 and moves the latter to release crank 93,which then is returned to its normal position by a spring 99 acting onlever 87 It will be seei ,1 herefore, that' if finger 62? is buckled at1e end of 'a message, the paper is moved to a certain-number of linespaces from the'beginning" of such message, the number of spaces beingdeterminedby the number of teeth on ratchet wheel 91.

- sage paper, the typewriter carriage Cv should be returned to initialposition inv orf It is, of course, necessary that when the end of a linehas been reached on the mesder that the printing'may' be continued onthe next line. 'To accomplish this return movement special apparatus iscontrolled by finger 62 to operate a carriage returntapev 118. Referringto Figs. 1 and-7, 105 and 106 are two coa'cting clutch members, theformer of which is fixed. on ,shaft'fi and the latterof which is free toslide-longitudinally on the same shaft... Integral with clutch member106 is a groovedfcollar106 and a gear 106". Fitting in the groove. ofcollar 106 is-a yoke 107 which is'fixedon a spindle 107 journaled intrunnionscrews which are mounted inlugs 1079 on end plate 8. .This yokemoves the clutch member 106 into and out of engagement with clutchmember 105. This yoke is controlled by two wings .108 and 108" fixed toshaft .107, one 'of which is a'dapted'to engage with a hook on one armof a latch 109 pivoted in a, bearing 110 [mounted on latform 2. Thislatch is biased to the hooking position by aspring 109. The other armofthis latch is'connected with a rod 94' which extends u wardly and isconnected with lever 87 -wh1chis controlled by lever 81 and finger 62.Lever 87 is located behind lever 87 'in Fig. 7 and is pivotally mountedon shaft 84. When lever 87 d is depressed it swings latch 109 to releasewing 108' which then permits yoke 107 to move clutch member .106 intoengaging position, the yoke being biased'to move mthis direction yaspring107". Gear106" meshes with gear 112 which is secured to anothergear 113', both .of, the latter gears being .wa'rdt is rod by springs99", 99, 99 and a plurality of permutation .bars, cams on mounted at 114on end'plate 8. Gear 113 meshes withla: gear 115 (-see Fig. 7) which isfixed to a shaft 116 extending through end plate 8, which shaft alsocarries .a drum 117 on the outside of the end plate. The flexible tape.118 which moves the typewriter ca rriage from left to right is wound ondrum 117. It will be seen thatthe release of lever 108 causes theengagement of clutch 105 -106, thereby causing rotation of-drum 117which returns the carriage. When the carriage hasreached its initialposition, .a

cam 1'19-o'n dru'm117 depresses wing108, thereby swinging oke 107 todisengage'the clutch, and the yo e is then retained in this position bythe hook on latch. 109. As here shown, the drum 11'7 is notrigidlysecured to the shaft 116, but is mounted freely thereon and is connectedtherewith by a friction clutch which comprises two "lates 101 of springsteel'each of which is xed toa hub 102. Interposed between the plates101 and the drum are two rings103 of fiber or other suitable frictionalniateriaL- The hubs. 102 are pressed together by a nut 104 screwed onthe end of shaft 116. B means of'this construction I avoid shock to themechanism when the carriage starts and stops.

In order to signal to-the operator,.I provide 'a gong 120 whose clapper121. is controlled by finger 62,. I This clapper is carried by a lever122 pivoted on the bearing 110, which lever is connected, by a rod 94,with a crank 87, which is depressed when lever 81 is held by finger 62.Crank 87 is directly behind crank 87 in Fig. 7, and is pivotally mountedon shaft 84. It will be'seen then that when finger 62 falls into theslots of I the permutation bars, the depression of rod 76 causes thegong to sound;

The'upwar'd movement ofbell-cranks 87, 87, 87' and 87' is limited b arod 123 fixed in end late 8. These cran s are biased to 99 respectively,eac of which springs acts against a rod 124 also fixed in end plate 8.

. Although I have herein shown and described only one form of apparatusembodying my invention, it is understood that various changes andmodifications may. be made therein within the scope of the appendedclaims without departing from the spirit and scope of myinvention.

Having thus described my invention, what I claim is: v

1. Printing telegraph apparatus com prisinga continuously operatingmotor, a shaft, a clutch for connecting said shaft with anddisconnecting it from said motor,

said shaft, line c'ontrolledmeans operated by one of said camsforselectively moving one or more of said bars, and means operated byanother of said cams for restoring 180 said bar or bars.

controlled means operated by said shaft during the first part of anoperation thereof for selectively shifting one or more of said bars,means controlled by said shaft during the next portion of the operationthereof for operatingsaid printing means in accordance with the numberand position of the shifted bars, and means controlled by said shaftduring the latter part of the operation thereof for restoring the bar orbars which 1 were shifted.

In testimony whereof I afiix my signature in presence of two witnesses.

LLOYD V. LEWIS.

Witnesses:

A. HERMAN WEGNER, R. L. KISTLER.

